Variabilitetit
Variabilitetit is the Finnish plural form of variabiliteetti, referring to the degree to which data values differ from one another or from a central reference value. In statistics, variability describes the dispersion or spread of a dataset and is a core concept alongside central tendency. It is essential for understanding processes, comparing groups, estimating uncertainty, and making decisions under uncertainty.
Common measures of variability include the range, interquartile range, variance, and standard deviation. The coefficient of
Variability arises from multiple sources. Sampling variation reflects differences between samples drawn from the same population.
Applications span many fields, including quality control, finance, psychology, epidemiology, and genetics. Assessing variability aids in